来自《耶鲁大学开放课程：金融理论 第4集 第4集》

• 
  
  and if the sum of the Y^(i)-hats over i equals the sum
  如果在I内Y^(i)-hats的总和等于
• 
  
  of the E^(i)_Y's.
  E^(i)_Y的总和
• 
  
  of the E^(i)_Y's.
  E^(i)_Y的总和
• 
  
  That's the theorem.
  这就是定理的内容
• 
  
  That's the theorem.
  这就是定理的内容
• 
  
  So we've totally weakened the definition of equilibrium.
  我们完全弱化了均衡的定义
• 
  
  So we've totally weakened the definition of equilibrium.
  我们完全弱化了均衡的定义
• 
  
  So it might be that if this is the competitive allocation if
  因此可能存在如果这是竞争均衡分配
• 
  
  So it might be that if this is the competitive allocation if
  因此可能存在如果这是竞争均衡分配
• 
  
  you look at this line this is same sum of utilities,
  请看这条线是相等的效用总和线
• 
  
  you look at this line this is same sum of utilities,
  请看这条线是相等的效用总和线
• 
  
  because if this slope is -1 and here's the utility to B and the
  因为如果这个斜率为负一而对于B的效用